In the original article an incorrect caption for Figure 1 was given. The assignment of the solvents to the capital letters was not correct. The correct caption of Figure 1 is: 1H NMR spectra of compound 3a measured in five different solvents: (A) acetonitrile-d3, (B) methanol-d4, (C) acetone-d6, (D) DMSO-d6 and (E) CDCl3 (orange: region of interest). Figure 1 with the corrected caption is given below.